Table 3 Factors associated with incidence sexually transmitted infections among the cohort participants
Variable | Person time | Event | Un-adjusted cox model | Adjusted Cox-model |
|---|---|---|---|---|
HR (95% CI) | HR (95% CI | |||
Site | ||||
Urban | 12,305.7 | 17 | Ref | Ref |
Rural | 20,500.3 | 74 | 2.58 (1.52–4.40) | 2.82 (1.60–5.00) |
Age at baseline | ||||
18–34 | 5152.6 | 16 | 1.72(1.07–3.00) | 2.14 (1.08–4.21 |
35–44 | 14,661.4 | 50 | 1.52 (0.80–1.84) | 1.74 (1.05–2.83) |
> 45 | 12,992.0 | 25 | Ref | Ref |
Gender | ||||
Female | 23,986.5 | 78 | Ref | Ref |
Male | 8819.6 | 13 | 0.45 (0.25–0.81) | 0.51 (0.27–0.93) |
Marital status | ||||
Married/cohabiting | 15,183.3 | 42 | Ref | |
Not married | 17,622.7 | 49 | 1.00 (0.67–1.52) | |
Educational level | ||||
No formal education | 4032.5 | 15 | Ref | |
Primary Level | 15,219.0 | 36 | 0.61 (0.34–1.12) | |
≥Secondary level | 13,554.7 | 40 | 0.75 (0.42–1.36) | |
Employment | ||||
No Formal employment | 8827.1 | 26 | Ref | |
Formal employment | 23,506.0 | 65 | 0.98 (0.62–1.54) | |
Risky sexual behavior | ||||
No risky sexual behavior | 27,895.2 | 70 | Ref | |
Risky sexual behavior | 4875.6 | 21 | 1.70 (1.04–2.77) | 1.40 (0.84–2.33) |
Baseline Viral load Log viral load | 1.04 (0.86–1.25) | |||
< 1000 copies/ml | 28,780.7 | 72 | Ref | |
≥1000 copies/ml | 4008.6 | 10 | 1.04 (0.87–1.26) | 1.21 (0.70–2.08) |
Baseline CD4 cell/mm3 | ||||
< 200 cells/mm3 | 3132.3 | 10 | Ref | |
≥200 cells/mm3 | 29,673.8 | 81 | 0.87 (0.45–1.67) | |
Time on ART | 0.98 (0.80–1.20) | |||